aboutsummaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/loongson/lemote-2f/Makefile2
-rw-r--r--arch/mips/loongson/lemote-2f/ec_kb3310b.c130
-rw-r--r--arch/mips/loongson/lemote-2f/ec_kb3310b.h188
3 files changed, 319 insertions, 1 deletions
diff --git a/arch/mips/loongson/lemote-2f/Makefile b/arch/mips/loongson/lemote-2f/Makefile
index 5add7b2ead1c..4d84b27dc41b 100644
--- a/arch/mips/loongson/lemote-2f/Makefile
+++ b/arch/mips/loongson/lemote-2f/Makefile
@@ -2,7 +2,7 @@
2# Makefile for lemote loongson2f family machines 2# Makefile for lemote loongson2f family machines
3# 3#
4 4
5obj-y += irq.o reset.o 5obj-y += irq.o reset.o ec_kb3310b.o
6 6
7# 7#
8# Suspend Support 8# Suspend Support
diff --git a/arch/mips/loongson/lemote-2f/ec_kb3310b.c b/arch/mips/loongson/lemote-2f/ec_kb3310b.c
new file mode 100644
index 000000000000..4d84111a2cd4
--- /dev/null
+++ b/arch/mips/loongson/lemote-2f/ec_kb3310b.c
@@ -0,0 +1,130 @@
1/*
2 * Basic KB3310B Embedded Controller support for the YeeLoong 2F netbook
3 *
4 * Copyright (C) 2008 Lemote Inc.
5 * Author: liujl <liujl@lemote.com>, 2008-04-20
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 */
12
13#include <linux/module.h>
14#include <linux/spinlock.h>
15#include <linux/delay.h>
16
17#include "ec_kb3310b.h"
18
19static DEFINE_SPINLOCK(index_access_lock);
20static DEFINE_SPINLOCK(port_access_lock);
21
22unsigned char ec_read(unsigned short addr)
23{
24 unsigned char value;
25 unsigned long flags;
26
27 spin_lock_irqsave(&index_access_lock, flags);
28 outb((addr & 0xff00) >> 8, EC_IO_PORT_HIGH);
29 outb((addr & 0x00ff), EC_IO_PORT_LOW);
30 value = inb(EC_IO_PORT_DATA);
31 spin_unlock_irqrestore(&index_access_lock, flags);
32
33 return value;
34}
35EXPORT_SYMBOL_GPL(ec_read);
36
37void ec_write(unsigned short addr, unsigned char val)
38{
39 unsigned long flags;
40
41 spin_lock_irqsave(&index_access_lock, flags);
42 outb((addr & 0xff00) >> 8, EC_IO_PORT_HIGH);
43 outb((addr & 0x00ff), EC_IO_PORT_LOW);
44 outb(val, EC_IO_PORT_DATA);
45 /* flush the write action */
46 inb(EC_IO_PORT_DATA);
47 spin_unlock_irqrestore(&index_access_lock, flags);
48
49 return;
50}
51EXPORT_SYMBOL_GPL(ec_write);
52
53/*
54 * This function is used for EC command writes and corresponding status queries.
55 */
56int ec_query_seq(unsigned char cmd)
57{
58 int timeout;
59 unsigned char status;
60 unsigned long flags;
61 int ret = 0;
62
63 spin_lock_irqsave(&port_access_lock, flags);
64
65 /* make chip goto reset mode */
66 udelay(EC_REG_DELAY);
67 outb(cmd, EC_CMD_PORT);
68 udelay(EC_REG_DELAY);
69
70 /* check if the command is received by ec */
71 timeout = EC_CMD_TIMEOUT;
72 status = inb(EC_STS_PORT);
73 while (timeout-- && (status & (1 << 1))) {
74 status = inb(EC_STS_PORT);
75 udelay(EC_REG_DELAY);
76 }
77
78 if (timeout <= 0) {
79 printk(KERN_ERR "%s: deadable error : timeout...\n", __func__);
80 ret = -EINVAL;
81 } else
82 printk(KERN_INFO
83 "(%x/%d)ec issued command %d status : 0x%x\n",
84 timeout, EC_CMD_TIMEOUT - timeout, cmd, status);
85
86 spin_unlock_irqrestore(&port_access_lock, flags);
87
88 return ret;
89}
90EXPORT_SYMBOL_GPL(ec_query_seq);
91
92/*
93 * Send query command to EC to get the proper event number
94 */
95int ec_query_event_num(void)
96{
97 return ec_query_seq(CMD_GET_EVENT_NUM);
98}
99EXPORT_SYMBOL(ec_query_event_num);
100
101/*
102 * Get event number from EC
103 *
104 * NOTE: This routine must follow the query_event_num function in the
105 * interrupt.
106 */
107int ec_get_event_num(void)
108{
109 int timeout = 100;
110 unsigned char value;
111 unsigned char status;
112
113 udelay(EC_REG_DELAY);
114 status = inb(EC_STS_PORT);
115 udelay(EC_REG_DELAY);
116 while (timeout-- && !(status & (1 << 0))) {
117 status = inb(EC_STS_PORT);
118 udelay(EC_REG_DELAY);
119 }
120 if (timeout <= 0) {
121 pr_info("%s: get event number timeout.\n", __func__);
122
123 return -EINVAL;
124 }
125 value = inb(EC_DAT_PORT);
126 udelay(EC_REG_DELAY);
127
128 return value;
129}
130EXPORT_SYMBOL(ec_get_event_num);
diff --git a/arch/mips/loongson/lemote-2f/ec_kb3310b.h b/arch/mips/loongson/lemote-2f/ec_kb3310b.h
new file mode 100644
index 000000000000..1595a21b315b
--- /dev/null
+++ b/arch/mips/loongson/lemote-2f/ec_kb3310b.h
@@ -0,0 +1,188 @@
1/*
2 * KB3310B Embedded Controller
3 *
4 * Copyright (C) 2008 Lemote Inc.
5 * Author: liujl <liujl@lemote.com>, 2008-03-14
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 */
12
13#ifndef _EC_KB3310B_H
14#define _EC_KB3310B_H
15
16extern unsigned char ec_read(unsigned short addr);
17extern void ec_write(unsigned short addr, unsigned char val);
18extern int ec_query_seq(unsigned char cmd);
19extern int ec_query_event_num(void);
20extern int ec_get_event_num(void);
21
22typedef int (*sci_handler) (int status);
23extern sci_handler yeeloong_report_lid_status;
24
25#define SCI_IRQ_NUM 0x0A
26
27/*
28 * The following registers are determined by the EC index configuration.
29 * 1, fill the PORT_HIGH as EC register high part.
30 * 2, fill the PORT_LOW as EC register low part.
31 * 3, fill the PORT_DATA as EC register write data or get the data from it.
32 */
33#define EC_IO_PORT_HIGH 0x0381
34#define EC_IO_PORT_LOW 0x0382
35#define EC_IO_PORT_DATA 0x0383
36
37/*
38 * EC delay time is 500us for register and status access
39 */
40#define EC_REG_DELAY 500 /* unit : us */
41#define EC_CMD_TIMEOUT 0x1000
42
43/*
44 * EC access port for SCI communication
45 */
46#define EC_CMD_PORT 0x66
47#define EC_STS_PORT 0x66
48#define EC_DAT_PORT 0x62
49#define CMD_INIT_IDLE_MODE 0xdd
50#define CMD_EXIT_IDLE_MODE 0xdf
51#define CMD_INIT_RESET_MODE 0xd8
52#define CMD_REBOOT_SYSTEM 0x8c
53#define CMD_GET_EVENT_NUM 0x84
54#define CMD_PROGRAM_PIECE 0xda
55
56/* temperature & fan registers */
57#define REG_TEMPERATURE_VALUE 0xF458
58#define REG_FAN_AUTO_MAN_SWITCH 0xF459
59#define BIT_FAN_AUTO 0
60#define BIT_FAN_MANUAL 1
61#define REG_FAN_CONTROL 0xF4D2
62#define BIT_FAN_CONTROL_ON (1 << 0)
63#define BIT_FAN_CONTROL_OFF (0 << 0)
64#define REG_FAN_STATUS 0xF4DA
65#define BIT_FAN_STATUS_ON (1 << 0)
66#define BIT_FAN_STATUS_OFF (0 << 0)
67#define REG_FAN_SPEED_HIGH 0xFE22
68#define REG_FAN_SPEED_LOW 0xFE23
69#define REG_FAN_SPEED_LEVEL 0xF4CC
70/* fan speed divider */
71#define FAN_SPEED_DIVIDER 480000 /* (60*1000*1000/62.5/2)*/
72
73/* battery registers */
74#define REG_BAT_DESIGN_CAP_HIGH 0xF77D
75#define REG_BAT_DESIGN_CAP_LOW 0xF77E
76#define REG_BAT_FULLCHG_CAP_HIGH 0xF780
77#define REG_BAT_FULLCHG_CAP_LOW 0xF781
78#define REG_BAT_DESIGN_VOL_HIGH 0xF782
79#define REG_BAT_DESIGN_VOL_LOW 0xF783
80#define REG_BAT_CURRENT_HIGH 0xF784
81#define REG_BAT_CURRENT_LOW 0xF785
82#define REG_BAT_VOLTAGE_HIGH 0xF786
83#define REG_BAT_VOLTAGE_LOW 0xF787
84#define REG_BAT_TEMPERATURE_HIGH 0xF788
85#define REG_BAT_TEMPERATURE_LOW 0xF789
86#define REG_BAT_RELATIVE_CAP_HIGH 0xF492
87#define REG_BAT_RELATIVE_CAP_LOW 0xF493
88#define REG_BAT_VENDOR 0xF4C4
89#define FLAG_BAT_VENDOR_SANYO 0x01
90#define FLAG_BAT_VENDOR_SIMPLO 0x02
91#define REG_BAT_CELL_COUNT 0xF4C6
92#define FLAG_BAT_CELL_3S1P 0x03
93#define FLAG_BAT_CELL_3S2P 0x06
94#define REG_BAT_CHARGE 0xF4A2
95#define FLAG_BAT_CHARGE_DISCHARGE 0x01
96#define FLAG_BAT_CHARGE_CHARGE 0x02
97#define FLAG_BAT_CHARGE_ACPOWER 0x00
98#define REG_BAT_STATUS 0xF4B0
99#define BIT_BAT_STATUS_LOW (1 << 5)
100#define BIT_BAT_STATUS_DESTROY (1 << 2)
101#define BIT_BAT_STATUS_FULL (1 << 1)
102#define BIT_BAT_STATUS_IN (1 << 0)
103#define REG_BAT_CHARGE_STATUS 0xF4B1
104#define BIT_BAT_CHARGE_STATUS_OVERTEMP (1 << 2)
105#define BIT_BAT_CHARGE_STATUS_PRECHG (1 << 1)
106#define REG_BAT_STATE 0xF482
107#define BIT_BAT_STATE_CHARGING (1 << 1)
108#define BIT_BAT_STATE_DISCHARGING (1 << 0)
109#define REG_BAT_POWER 0xF440
110#define BIT_BAT_POWER_S3 (1 << 2)
111#define BIT_BAT_POWER_ON (1 << 1)
112#define BIT_BAT_POWER_ACIN (1 << 0)
113
114/* other registers */
115/* Audio: rd/wr */
116#define REG_AUDIO_VOLUME 0xF46C
117#define REG_AUDIO_MUTE 0xF4E7
118#define REG_AUDIO_BEEP 0xF4D0
119/* USB port power or not: rd/wr */
120#define REG_USB0_FLAG 0xF461
121#define REG_USB1_FLAG 0xF462
122#define REG_USB2_FLAG 0xF463
123#define BIT_USB_FLAG_ON 1
124#define BIT_USB_FLAG_OFF 0
125/* LID */
126#define REG_LID_DETECT 0xF4BD
127#define BIT_LID_DETECT_ON 1
128#define BIT_LID_DETECT_OFF 0
129/* CRT */
130#define REG_CRT_DETECT 0xF4AD
131#define BIT_CRT_DETECT_PLUG 1
132#define BIT_CRT_DETECT_UNPLUG 0
133/* LCD backlight brightness adjust: 9 levels */
134#define REG_DISPLAY_BRIGHTNESS 0xF4F5
135/* Black screen Status */
136#define BIT_DISPLAY_LCD_ON 1
137#define BIT_DISPLAY_LCD_OFF 0
138/* LCD backlight control: off/restore */
139#define REG_BACKLIGHT_CTRL 0xF7BD
140#define BIT_BACKLIGHT_ON 1
141#define BIT_BACKLIGHT_OFF 0
142/* Reset the machine auto-clear: rd/wr */
143#define REG_RESET 0xF4EC
144#define BIT_RESET_ON 1
145/* Light the led: rd/wr */
146#define REG_LED 0xF4C8
147#define BIT_LED_RED_POWER (1 << 0)
148#define BIT_LED_ORANGE_POWER (1 << 1)
149#define BIT_LED_GREEN_CHARGE (1 << 2)
150#define BIT_LED_RED_CHARGE (1 << 3)
151#define BIT_LED_NUMLOCK (1 << 4)
152/* Test led mode, all led on/off */
153#define REG_LED_TEST 0xF4C2
154#define BIT_LED_TEST_IN 1
155#define BIT_LED_TEST_OUT 0
156/* Camera on/off */
157#define REG_CAMERA_STATUS 0xF46A
158#define BIT_CAMERA_STATUS_ON 1
159#define BIT_CAMERA_STATUS_OFF 0
160#define REG_CAMERA_CONTROL 0xF7B7
161#define BIT_CAMERA_CONTROL_OFF 0
162#define BIT_CAMERA_CONTROL_ON 1
163/* Wlan Status */
164#define REG_WLAN 0xF4FA
165#define BIT_WLAN_ON 1
166#define BIT_WLAN_OFF 0
167#define REG_DISPLAY_LCD 0xF79F
168
169/* SCI Event Number from EC */
170enum {
171 EVENT_LID = 0x23, /* LID open/close */
172 EVENT_DISPLAY_TOGGLE, /* Fn+F3 for display switch */
173 EVENT_SLEEP, /* Fn+F1 for entering sleep mode */
174 EVENT_OVERTEMP, /* Over-temperature happened */
175 EVENT_CRT_DETECT, /* CRT is connected */
176 EVENT_CAMERA, /* Camera on/off */
177 EVENT_USB_OC2, /* USB2 Over Current occurred */
178 EVENT_USB_OC0, /* USB0 Over Current occurred */
179 EVENT_BLACK_SCREEN, /* Turn on/off backlight */
180 EVENT_AUDIO_MUTE, /* Mute on/off */
181 EVENT_DISPLAY_BRIGHTNESS,/* LCD backlight brightness adjust */
182 EVENT_AC_BAT, /* AC & Battery relative issue */
183 EVENT_AUDIO_VOLUME, /* Volume adjust */
184 EVENT_WLAN, /* Wlan on/off */
185 EVENT_END
186};
187
188#endif /* !_EC_KB3310B_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-22 12:02:48 -0500